Bounds on hep neutrinos
| dc.creator | Fiorentini, G. | |
| dc.creator | Berezinsky, V. | |
| dc.creator | Degl'Innocenti, S. | |
| dc.creator | Ricci, B. | |
| dc.date | 1998-10-06 | |
| dc.date.accessioned | 2026-07-07T12:16:31Z | |
| dc.date.available | 2026-07-07T12:16:31Z | |
| dc.description | The excess of highest energy solar-neutrino events recently observed by Superkamiokande can be in principle explained by anomalously high $hep$-neutrino flux $Φ_ν(hep)$. Without using SSM calculations, from the solar luminosity constraint we derive that $Φ_ν(hep)/S_{13}$ cannot exceed the SSM estimate by more than a factor three. If one makes the additional hypothesis that $hep$ neutrino production occurs where the $^3$He concentration is at equilibrium, helioseismology gives an upper bound which is (less then) two times the SSM prediction. We argue that the anomalous $hep$-neutrino flux of order of that observed by Superkamiokande cannot be explained by astrophysics, but rather by a large production cross-section. | |
| dc.description | 7 pages, RevTeX file | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9810083 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9810083 | |
| dc.identifier | Phys.Lett.B444:387-390,1998 | |
| dc.identifier | doi:10.1016/S0370-2693(98)01417-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/211828 | |
| dc.subject | Astrophysics | |
| dc.title | Bounds on hep neutrinos | |
| dc.type | text |